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Finding the Fourth Proportional to 196,959.48, 295,439.70 and 78,640.44

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Solution

The fourth proportional to 196,959.48, 295,439.70 and 78,640.44 is: 117,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,959.48 : 295,439.70 = 78,640.44 : x
  2. Step 2: Convert to fraction form
    196,959.48/295,439.70 = 78,640.44/x
  3. Step 3: Cross multiply
    196,959.48x = 295,439.70 × 78,640.44
  4. Step 4: Simplify right side
    196,959.48x = 23,233,508,001.47
  5. Step 5: Solve for x
    x = 23,233,508,001.47/196,959.48
  6. Step 6: Final answer
    x = 117,960.85

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